The Tower and the Hive

Blurb

The Tower and the Hive is the conclusion to the series of novels by Anne McCaffrey which began with The Rowan.
The war against the alien Hivers is finally concluded, as humans discover a solution that does not involve wiping out the species. A similar solution is found to the main social problem of humanity's closest allies, the Mrdini.
The book was published May 1, 1999, by Ace/Berkley. Kirkus concluded its review, "Cuddly family/romance/alien-contact saga with useful ideas but far too many characters distinguishable only by their silly names. Still, fans of the series will plunge right in."